Cool game! Nicely done making something in scratch, I remember I started out coding in it and loved every second of it, keep it up! (I recommend trying out making games in lua, its a nice step up)
One thing I'd suggest is making movement a little more responsive, seems like trying to move left or right only moves you a little bit so sideways movement is really stuttery, and if you jump it stops reacting to any left/right input until you press it again.
But the idea with the 'time jumping' and bunch of jokes were great!